Enginetech Piston Rings R39156-STD; 3.910 in.

Enginetech C39156 | Premium Piston Rings for 87-91 Chrysler/Dodge 3.9L/239 V6

Enginetech Piston Rings C39156-020; 3.930 in.

Enginetech Engine Piston Ring Set C10218-STD; 4.000" Bore Drop-In Replacement

Enginetech Jeep 3.6L Pentastar V6 Piston Rings 2011-2020 Std

Enginetech Piston Rings C39156-030; 3.940 in.

Enginetech Piston Rings C39156-060; 3.970 in.

Enginetech Piston Rings C39156-040; 3.950 in.